Western Smooth Boxfish

Anoplocapros amygdaloides

The Western Smooth Boxfish, also known as the blue boxfish or robust boxfish, is a distinctive marine fish found exclusively in the waters of southwestern Australia. It can be identified by its unique carapace, which resembles the large stone of a peach. This species exhibits a variety of colors; smaller individuals are typically yellowish-white with brown tints and black spots, while larger males may appear bluish with brown blotches and light blue fins. The fish can grow up to 30 cm in length. Divers may encounter the Western Smooth Boxfish on offshore reefs, seagrass beds, and trawling grounds at depths ranging from 5 to 100 meters. It is a bottom-dwelling species that feeds on benthic invertebrates. The fish has separate sexes, and while its flesh is not toxic, it can release a toxic mucus that is harmful to other fish and potentially to itself if trapped in it for too long. The species is currently listed as Least Concern on the IUCN Red List. Divers might find this fish in its natural habitat throughout the year, as there is no specific seasonality mentioned for this species.